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| <h1>arm_sin_cos_example_f32.c</h1> </div> |
| </div> |
| <div class="contents"> |
| <a href="arm__sin__cos__example__f32_8c.html">Go to the documentation of this file.</a><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">/* ---------------------------------------------------------------------- </span> |
| <a name="l00002"></a>00002 <span class="comment">* Copyright (C) 2010 ARM Limited. All rights reserved. </span> |
| <a name="l00003"></a>00003 <span class="comment">* </span> |
| <a name="l00004"></a>00004 <span class="comment">* $Date: 29. November 2010 </span> |
| <a name="l00005"></a>00005 <span class="comment">* $Revision: V1.0.3</span> |
| <a name="l00006"></a>00006 <span class="comment">* </span> |
| <a name="l00007"></a>00007 <span class="comment">* Project: CMSIS DSP Library </span> |
| <a name="l00008"></a>00008 <span class="comment">* Title: arm_sin_cos_example_f32.c </span> |
| <a name="l00009"></a>00009 <span class="comment">* </span> |
| <a name="l00010"></a>00010 <span class="comment">* Description: Example code demonstrating sin and cos calculation of input signal. </span> |
| <a name="l00011"></a>00011 <span class="comment">* </span> |
| <a name="l00012"></a>00012 <span class="comment">* Target Processor: Cortex-M4/Cortex-M3 </span> |
| <a name="l00013"></a>00013 <span class="comment">*</span> |
| <a name="l00014"></a>00014 <span class="comment">*</span> |
| <a name="l00015"></a>00015 <span class="comment">* Version 1.0.3 2010/11/29 </span> |
| <a name="l00016"></a>00016 <span class="comment">* Re-organized the CMSIS folders and updated documentation. </span> |
| <a name="l00017"></a>00017 <span class="comment">* </span> |
| <a name="l00018"></a>00018 <span class="comment">* Version 1.0.1 2010/10/05 KK </span> |
| <a name="l00019"></a>00019 <span class="comment">* Production release and review comments incorporated. </span> |
| <a name="l00020"></a>00020 <span class="comment">*</span> |
| <a name="l00021"></a>00021 <span class="comment">* Version 1.0.0 2010/09/20 KK</span> |
| <a name="l00022"></a>00022 <span class="comment">* Production release and review comments incorporated.</span> |
| <a name="l00023"></a>00023 <span class="comment">* ------------------------------------------------------------------- */</span> |
| <a name="l00024"></a>00024 |
| <a name="l00068"></a>00068 <span class="preprocessor">#include <math.h></span> |
| <a name="l00069"></a>00069 <span class="preprocessor">#include "<a class="code" href="arm__math_8h.html">arm_math.h</a>"</span> |
| <a name="l00070"></a>00070 |
| <a name="l00071"></a>00071 <span class="comment">/* ---------------------------------------------------------------------- </span> |
| <a name="l00072"></a>00072 <span class="comment">* Defines each of the tests performed </span> |
| <a name="l00073"></a>00073 <span class="comment">* ------------------------------------------------------------------- */</span> |
| <a name="l00074"></a><a class="code" href="arm__sin__cos__example__f32_8c.html#af8a1d2ed31f7c9a00fec46a798edb61b">00074</a> <span class="preprocessor">#define MAX_BLOCKSIZE 32 </span> |
| <a name="l00075"></a><a class="code" href="arm__sin__cos__example__f32_8c.html#a3fd2b1bcd7ddcf506237987ad780f495">00075</a> <span class="preprocessor"></span><span class="preprocessor">#define DELTA (0.000001f) </span> |
| <a name="l00076"></a>00076 <span class="preprocessor"></span> |
| <a name="l00077"></a>00077 |
| <a name="l00078"></a>00078 <span class="comment">/* ---------------------------------------------------------------------- </span> |
| <a name="l00079"></a>00079 <span class="comment">* Test input data for Floating point sin_cos example for 32-blockSize </span> |
| <a name="l00080"></a>00080 <span class="comment">* Generated by the MATLAB randn() function </span> |
| <a name="l00081"></a>00081 <span class="comment">* ------------------------------------------------------------------- */</span> |
| <a name="l00082"></a>00082 |
| <a name="l00083"></a><a class="code" href="arm__sin__cos__example__f32_8c.html#a8b3b7113988efd5bf11a247d07ae39a1">00083</a> <span class="keyword">const</span> <a class="code" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715" title="32-bit floating-point type definition.">float32_t</a> <a class="code" href="arm__graphic__equalizer__example__q31_8c.html#aa4699dc6ee05353c83e0be4e69f6ad05">testInput_f32</a>[<a class="code" href="arm__sin__cos__example__f32_8c.html#af8a1d2ed31f7c9a00fec46a798edb61b">MAX_BLOCKSIZE</a>] = |
| <a name="l00084"></a>00084 { |
| <a name="l00085"></a>00085 -1.244916875853235400, -4.793533929171324800, 0.360705030233248850, 0.827929644170887320, -3.299532218312426900, 3.427441903227623800, 3.422401784294607700, -0.108308165334010680, |
| <a name="l00086"></a>00086 0.941943896490312180, 0.502609575000365850, -0.537345278736373500, 2.088817392965764500, -1.693168684143455700, 6.283185307179590700, -0.392545884746175080, 0.327893095115825040, |
| <a name="l00087"></a>00087 3.070147440456292300, 0.170611405884662230, -0.275275082396073010, -2.395492805446796300, 0.847311163536506600, -3.845517018083148800, 2.055818378415868300, 4.672594161978930800, |
| <a name="l00088"></a>00088 -1.990923030266425800, 2.469305197656249500, 3.609002606064021000, -4.586736582331667500, -4.147080139136136300, 1.643756718868359500, -1.150866392366494800, 1.985805026477433800 |
| <a name="l00089"></a>00089 |
| <a name="l00090"></a>00090 |
| <a name="l00091"></a>00091 }; |
| <a name="l00092"></a>00092 |
| <a name="l00093"></a><a class="code" href="arm__sin__cos__example__f32_8c.html#a8bcb5c1f75ed5f1737e435f0de1850a3">00093</a> <span class="keyword">const</span> <a class="code" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715" title="32-bit floating-point type definition.">float32_t</a> <a class="code" href="arm__convolution__example__f32_8c.html#a6463f7327432fc62ad9f6017593330d3">testRefOutput_f32</a> = 1.000000000; |
| <a name="l00094"></a>00094 |
| <a name="l00095"></a>00095 <span class="comment">/* ---------------------------------------------------------------------- </span> |
| <a name="l00096"></a>00096 <span class="comment">* Declare Global variables </span> |
| <a name="l00097"></a>00097 <span class="comment">* ------------------------------------------------------------------- */</span> |
| <a name="l00098"></a><a class="code" href="arm__sin__cos__example__f32_8c.html#ab6558f40a619c2502fbc24c880fd4fb0">00098</a> uint32_t <a class="code" href="arm__fir__example__f32_8c.html#ab6558f40a619c2502fbc24c880fd4fb0">blockSize</a> = 32; |
| <a name="l00099"></a><a class="code" href="arm__sin__cos__example__f32_8c.html#a324833b61eae796082e07d078a67c34f">00099</a> <a class="code" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715" title="32-bit floating-point type definition.">float32_t</a> <a class="code" href="arm__class__marks__example__f32_8c.html#afd4d61aad5f35a4e42d580004e2f9a1d">testOutput</a>; |
| <a name="l00100"></a><a class="code" href="arm__sin__cos__example__f32_8c.html#a85b1050fcef4347d69f35a9aee798f8a">00100</a> <a class="code" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715" title="32-bit floating-point type definition.">float32_t</a> <a class="code" href="arm__sin__cos__example__f32_8c.html#a85b1050fcef4347d69f35a9aee798f8a">cosOutput</a>; |
| <a name="l00101"></a><a class="code" href="arm__sin__cos__example__f32_8c.html#a1e232694019f6b61710fbff5ee27126c">00101</a> <a class="code" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715" title="32-bit floating-point type definition.">float32_t</a> <a class="code" href="arm__sin__cos__example__f32_8c.html#a1e232694019f6b61710fbff5ee27126c">sinOutput</a>; |
| <a name="l00102"></a><a class="code" href="arm__sin__cos__example__f32_8c.html#a2cb185794dcb587d158f346ab049cc4e">00102</a> <a class="code" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715" title="32-bit floating-point type definition.">float32_t</a> <a class="code" href="arm__sin__cos__example__f32_8c.html#a2cb185794dcb587d158f346ab049cc4e">cosSquareOutput</a>; |
| <a name="l00103"></a><a class="code" href="arm__sin__cos__example__f32_8c.html#aa5a66e866ebb91eb971f2805209e9d36">00103</a> <a class="code" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715" title="32-bit floating-point type definition.">float32_t</a> <a class="code" href="arm__sin__cos__example__f32_8c.html#aa5a66e866ebb91eb971f2805209e9d36">sinSquareOutput</a>; |
| <a name="l00104"></a>00104 |
| <a name="l00105"></a>00105 <span class="comment">/* ---------------------------------------------------------------------- </span> |
| <a name="l00106"></a>00106 <span class="comment">* Max magnitude FFT Bin test </span> |
| <a name="l00107"></a>00107 <span class="comment">* ------------------------------------------------------------------- */</span> |
| <a name="l00108"></a>00108 |
| <a name="l00109"></a><a class="code" href="arm__sin__cos__example__f32_8c.html#a88ccb294236ab22b00310c47164c53c3">00109</a> <a class="code" href="arm__math_8h.html#a5e459c6409dfcd2927bb8a57491d7cf6" title="Error status returned by some functions in the library.">arm_status</a> <a class="code" href="arm__dotproduct__example__f32_8c.html#a88ccb294236ab22b00310c47164c53c3">status</a>; |
| <a name="l00110"></a>00110 |
| <a name="l00111"></a><a class="code" href="arm__sin__cos__example__f32_8c.html#a52d2cba30e6946c95578be946ac12a65">00111</a> int32_t <a class="code" href="arm__class__marks__example__f32_8c.html#a196718f834091385d38586a0ce4009dc">main</a>(<span class="keywordtype">void</span>) |
| <a name="l00112"></a>00112 { |
| <a name="l00113"></a>00113 <a class="code" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715" title="32-bit floating-point type definition.">float32_t</a> diff; |
| <a name="l00114"></a>00114 uint32_t i; |
| <a name="l00115"></a>00115 |
| <a name="l00116"></a>00116 <span class="keywordflow">for</span>(i=0; i< <a class="code" href="arm__fir__example__f32_8c.html#ab6558f40a619c2502fbc24c880fd4fb0">blockSize</a>; i++) |
| <a name="l00117"></a>00117 { |
| <a name="l00118"></a>00118 <a class="code" href="arm__sin__cos__example__f32_8c.html#a85b1050fcef4347d69f35a9aee798f8a">cosOutput</a> = <a class="code" href="group__cos.html#gace15287f9c64b9b4084d1c797d4c49d8" title="Fast approximation to the trigonometric cosine function for floating-point data.">arm_cos_f32</a>(<a class="code" href="arm__graphic__equalizer__example__q31_8c.html#aa4699dc6ee05353c83e0be4e69f6ad05">testInput_f32</a>[i]); |
| <a name="l00119"></a>00119 <a class="code" href="arm__sin__cos__example__f32_8c.html#a1e232694019f6b61710fbff5ee27126c">sinOutput</a> = <a class="code" href="group__sin.html#gae164899c4a3fc0e946dc5d55555fe541" title="Fast approximation to the trigonometric sine function for floating-point data.">arm_sin_f32</a>(<a class="code" href="arm__graphic__equalizer__example__q31_8c.html#aa4699dc6ee05353c83e0be4e69f6ad05">testInput_f32</a>[i]); |
| <a name="l00120"></a>00120 |
| <a name="l00121"></a>00121 <a class="code" href="group___basic_mult.html#gaca3f0b8227da431ab29225b88888aa32" title="Floating-point vector multiplication.">arm_mult_f32</a>(&<a class="code" href="arm__sin__cos__example__f32_8c.html#a85b1050fcef4347d69f35a9aee798f8a">cosOutput</a>, &<a class="code" href="arm__sin__cos__example__f32_8c.html#a85b1050fcef4347d69f35a9aee798f8a">cosOutput</a>, &<a class="code" href="arm__sin__cos__example__f32_8c.html#a2cb185794dcb587d158f346ab049cc4e">cosSquareOutput</a>, 1); |
| <a name="l00122"></a>00122 <a class="code" href="group___basic_mult.html#gaca3f0b8227da431ab29225b88888aa32" title="Floating-point vector multiplication.">arm_mult_f32</a>(&<a class="code" href="arm__sin__cos__example__f32_8c.html#a1e232694019f6b61710fbff5ee27126c">sinOutput</a>, &<a class="code" href="arm__sin__cos__example__f32_8c.html#a1e232694019f6b61710fbff5ee27126c">sinOutput</a>, &<a class="code" href="arm__sin__cos__example__f32_8c.html#aa5a66e866ebb91eb971f2805209e9d36">sinSquareOutput</a>, 1); |
| <a name="l00123"></a>00123 |
| <a name="l00124"></a>00124 <a class="code" href="group___basic_add.html#ga6a904a547413b10565dd1d251c6bafbd" title="Floating-point vector addition.">arm_add_f32</a>(&<a class="code" href="arm__sin__cos__example__f32_8c.html#a2cb185794dcb587d158f346ab049cc4e">cosSquareOutput</a>, &<a class="code" href="arm__sin__cos__example__f32_8c.html#aa5a66e866ebb91eb971f2805209e9d36">sinSquareOutput</a>, &<a class="code" href="arm__class__marks__example__f32_8c.html#afd4d61aad5f35a4e42d580004e2f9a1d">testOutput</a>, 1); |
| <a name="l00125"></a>00125 |
| <a name="l00126"></a>00126 <span class="comment">/* absolute value of difference between ref and test */</span> |
| <a name="l00127"></a>00127 diff = fabsf(<a class="code" href="arm__convolution__example__f32_8c.html#a6463f7327432fc62ad9f6017593330d3">testRefOutput_f32</a> - <a class="code" href="arm__class__marks__example__f32_8c.html#afd4d61aad5f35a4e42d580004e2f9a1d">testOutput</a>); |
| <a name="l00128"></a>00128 |
| <a name="l00129"></a>00129 <span class="comment">/* Comparison of sin_cos value with reference */</span> |
| <a name="l00130"></a>00130 <span class="keywordflow">if</span>(diff > <a class="code" href="arm__sin__cos__example__f32_8c.html#a3fd2b1bcd7ddcf506237987ad780f495">DELTA</a>) |
| <a name="l00131"></a>00131 { |
| <a name="l00132"></a>00132 <a class="code" href="arm__dotproduct__example__f32_8c.html#a88ccb294236ab22b00310c47164c53c3">status</a> = <a class="code" href="arm__math_8h.html#a5e459c6409dfcd2927bb8a57491d7cf6a09457f2be656b35015fd6d36202fa376">ARM_MATH_TEST_FAILURE</a>; |
| <a name="l00133"></a>00133 } |
| <a name="l00134"></a>00134 |
| <a name="l00135"></a>00135 <span class="keywordflow">if</span>( <a class="code" href="arm__dotproduct__example__f32_8c.html#a88ccb294236ab22b00310c47164c53c3">status</a> == <a class="code" href="arm__math_8h.html#a5e459c6409dfcd2927bb8a57491d7cf6a09457f2be656b35015fd6d36202fa376">ARM_MATH_TEST_FAILURE</a>) |
| <a name="l00136"></a>00136 { |
| <a name="l00137"></a>00137 <span class="keywordflow">while</span>(1); |
| <a name="l00138"></a>00138 } |
| <a name="l00139"></a>00139 |
| <a name="l00140"></a>00140 } |
| <a name="l00141"></a>00141 } |
| <a name="l00142"></a>00142 |
| </pre></div></div> |
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